Editing Lieutenant (section)

====Air force rank====
{{See also|Flight lieutenant}}

While some air forces use the army rank system, the British [[Royal Air Force]] and many other [[Commonwealth of Nations|Commonwealth]] air forces use another rank system in which [[flight lieutenant]] ranks with an army captain and naval lieutenant, a [[flying officer]] ranks with an army lieutenant and a [[pilot officer]] with an army second lieutenant.

<gallery class="center">
File:RAAF O3 rank.png|Flight lieutenant<br />([[Royal Australian Air Force]])
File:CDN-Air Force-Lieutenant (OF1A)-2015.svg|Lieutenant<br />([[Royal Canadian Air Force]])
File:Indian IAF OF-2.svg|Flight lieutenant<br />([[Indian Air Force]])
File:Teniente de la FAM.gif|{{lang|es|Teniente}}<br />([[Mexican Air Force]])
File:RO-Airforce-OF-2bs.PNG|{{lang|ro|Locotenent}}<br />([[Romanian Air Force]])
File:SAAF-OF-1b.svg|Lieutenant<br />([[South African Air Force]])
File:Tte-ea.svg|{{lang|es|Teniente}}<br />([[Spanish Air Force]])
File:SWE-Airforce-löjtnant.png|{{lang|sv|Löjtnant}}<br />([[Swedish Air Force]])
File:Thai air O2.png|Flight lieutenant<br />([[Royal Thai Air Force]])
File:British RAF OF-2.svg|Flight lieutenant<br />([[Royal Air Force]])
</gallery>

In the US Air Force, the Third Lieutenant Program refers specifically to a training program at active duty air force bases for cadets of the [[United States Air Force Academy|Air Force Academy]] and [[Air Force ROTC]] the summer before their fourth and final year before graduation and commissioning. A single silver or subdued pip is used to designate this rank.

The Royal Air Force also has an [[acting pilot officer]] designation, the most junior commissioned rank in the British armed forces. It is functionally equivalent to third lieutenant.